PWM Testing Equipment

[tsaksa]

Originally Posted by Todd

I realize you already mentioned that you've seen Arduino samples on how to make a PWM generator, but just for reference, we made one following the example at

https://sites.google.com/site/0123ic...arduino_jaguar

and it works splendidly. Having a test harness with something simple like a power gauge indicator for PWM lines would be really worthwhile in on the spot diagnosis, maybe we'll look into making one this year.

I have an Arduino based tester like what you described in prototype mode right now. When I get further I will try to post something. But I may be wasting some time on one aspect of it by including both powered and un-powered PWM outputs. I know that the digital side car has jumpers to allow you to power the center pins for driving both servo's motor controllers. Does anyone know what the common motor controllers we use do with that center pin? Can I just provide power to the center pin all the time, or will that create a problem with some motor controllers? Since the motor controllers are powered separately and that pin is not needed, why would it just not get connected inside the motor controllers?